You know, I didn't think of this but now that you brought it up, I'm very much reminded of little Madyson Middleton from Santa Cruz CA, who was sadly raped and strangled to death by her 15-year-old neighbor in 2015.
Like Maria, Madyson lived in an apartment complex. Madyson's murderer, Adrian Gonzalez, lived in the same apartment complex as her and used that familiarity to lure her and sickeningly harm her.
While it sounds like Maria was harmed in her own apartment rather than being lured to the murderer's living space (at least at this point since she was found there and there was coffee and sugar spilled on the sofa), I think it would be very possible for a neighbor, possibly a teenager, to have tricked her into letting him into the apartment under false premises.
I am thinking something along these lines as well. A neighbor she was familiar with knocking and asking if he could come in, maybe claiming he wanted to visit her dad to say hello or speak about something, and he doesn't mind waiting until her dad is home from work. She says OK and lets him in. He asks if he can have a cup of coffee, Maria gets up to get coffee and sugar, and he catches her off guard and attacks her, leading the coffee and sugar to be spilled everywhere? Just thinking.